when i was young, my mom always said,

晚上不甘愿睡，早上不甘愿起！

oh man. 你叫我现在怎么甘愿睡。我的off day就那么一天， 早睡就the end了。

game over.

就算隔天要做工然后早点睡，为什么早上还是会不甘愿起？

It doesn't make sense right. If it is logically correct, the opposite should be:

晚上甘愿睡，早上甘愿起！

mommy, 我还是不甘愿。。。i proved your logic wrong...

haha.